In a row of 38 children, all facing East, Ritvik is 15th from the right end. If Kavya is sitting 6th to the left of Ritvik, what is the position of Kavya from the left end of the row?

In a class of 58 students, Tanvi secured the 26th rank from the top. Anaya's rank is one position lower (worse) than Tanvi's rank. Find the number of students who secured a lower rank than Anaya.

Mr. Kell ranked 155th from the bottom and 37th from the top in his class. How many students are there in his class?